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Finding the Fourth Proportional to 302,587.57, 417,430.59 and 195,192.21

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Solution

The fourth proportional to 302,587.57, 417,430.59 and 195,192.21 is: 269,274.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,587.57 : 417,430.59 = 195,192.21 : x
  2. Step 2: Convert to fraction form
    302,587.57/417,430.59 = 195,192.21/x
  3. Step 3: Cross multiply
    302,587.57x = 417,430.59 × 195,192.21
  4. Step 4: Simplify right side
    302,587.57x = 81,479,197,244.01
  5. Step 5: Solve for x
    x = 81,479,197,244.01/302,587.57
  6. Step 6: Final answer
    x = 269,274.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.